Mildred Jane Hill (June 27, 1859 – June 5, 1916) was an American songwriter and musicologist, who composed the melody for "Good Morning to All", later used as the melody for "Happy Birthday to You".
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6565762ef43f0b7cb2a814b4273d470ef6b7b2eaaa949b08095e202d31e119e5. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9b3b657-2c63-4597-93e7-e6740e476e3b.json and https://artists.proofprofile.net/proofs/artist/b9b3b657-2c63-4597-93e7-e6740e476e3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
[着メロ] Happy Birthday To You 「Q;indivi Starring Rin Oikawa / オリジナル歌手」